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Interface - I/O Expanders

I/O expanders operate as a slave device, responsible for sending data to and receiving data from microcontrollers through the MCU port. I/O expanders are used with microcontrollers, microprocessors, or similar devices to increase the number of signal connections that can be used to connect peripheral devices. This technique improves connectivity by increasing communication speed.

Pictures Part Number Brand Stock Price Quantity Online Service
CAT9555WI-T1 CAT9555WI-T1 ON Semiconductor 1040 $1.97
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PCF8574DWRG4 PCF8574DWRG4 Texas Instruments 22500 $11.37
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PCA9570GMH PCA9570GMH NXP 20500 $5.69
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PCA9539BS+118 PCA9539BS+118 NXP 1900 $56.24
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PCA9534DB PCA9534DB Texas Instruments 9000 $1.61
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IMQ82C55AZ96 IMQ82C55AZ96 Renesas Electronics America 2360 $183.17
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PCA9670BS PCA9670BS NXP 8700 $13.49
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PCF8575CDBQRG4 PCF8575CDBQRG4 Texas Instruments 15000 $8.44
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PCA9555DBQ PCA9555DBQ Texas Instruments 3000 $26.71
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PCF8574DW PCF8574DW Texas Instruments 27000 $0.85
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PCAL6416APW,118 PCAL6416APW,118 NXP 18428 $8.53
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CP2120-GM CP2120-GM Silicon Labs 1530 $14.22
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PCA9534PWRG4 PCA9534PWRG4 Texas Instruments 80000 $1.42
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PCA9555DW PCA9555DW Texas Instruments 23500 $9.95
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PCA9534APWRG4 PCA9534APWRG4 Texas Instruments 1800 $9.95
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PCAL9535AHF,128 PCAL9535AHF,128 NXP 1720 $19.55
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PCA9534DBRG4 PCA9534DBRG4 Texas Instruments 2250 $8.44
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PCA9557DB PCA9557DB Texas Instruments 3000 $2.25
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PCAL9554BPW PCAL9554BPW NXP 2370 $22.43
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